(19)

(11)

EP 4 241 347 A1

(12)

(43) Date of publication: 13.09.2023 Bulletin 2023/37 (21) Application number: 21805445.0 (22) Date of filing: 01.11.2021

(51) International Patent Classification (IPC):  H01S 3/00(2006.01) H01S 3/23(2006.01) G02F 1/35(2006.01) H01S 3/067(2006.01) (52) Cooperative Patent Classification (CPC): H01S 3/0057; H01S 3/0085; H01S 3/005; H01S 3/0092; H01S 3/06737; G02F 1/3501; H01S 3/2383 (86) International application number: PCT/EP2021/080255 (87) International publication number: WO 2022/096413 (12.05.2022 Gazette 2022/19)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 03.11.2020 EP 20205411 (71) Applicant: Deutsches Elektronen-Synchrotron DESY 22607 Hamburg (DE)	(72) Inventors: MAIER, Andreas 22607 Hamburg (DE) WINKELMANN, Lutz 22607 Hamburg (DE) (74) Representative: v. Bezold & Partner Patentanwälte - PartG mbB  Ridlerstraße 57 80339 München 80339 München (DE)